/**
 * Copyright (c) 2009, Brian Showalter
 * All rights reserved.
 * ====================================================================
 * Licensed under the BSD License. Text as follows.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   - Neither the name brianshowalter.com nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 */

package com.brianshowalter.drupalrewrite;

import java.io.File;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.tuckey.web.filters.urlrewrite.ClassRule;
import org.tuckey.web.filters.urlrewrite.extend.RewriteMatch;
import org.tuckey.web.filters.urlrewrite.extend.RewriteRule;
import org.tuckey.web.filters.urlrewrite.utils.Log;
// Referenced classes of package com.brianshowalter.drupalrewrite:
//            DrupalMatch

/**
 * 
 * @author edited source by Tapomay for use of the app on JBoss as exploded war
 *
 */
public class DrupalRule extends RewriteRule
{
	private static Log log = Log.getLog(DrupalRule.class);
    public DrupalRule()
    {
    }

    public boolean init(ServletContext sc)
    {
        this.sc = sc;
        return true;
    }

    public RewriteMatch matches(HttpServletRequest request, HttpServletResponse response)
    {
        String requestURI = request.getRequestURI();
        log.debug("@DRUPALRULE: RequestUri = "+requestURI);
        if(requestURI == null)
            return null;
        
        //@UPDATE@TAPOMAY.....
        if(requestURI.equals(request.getContextPath()))
            return null;
        requestURI = requestURI.replaceAll(request.getContextPath(), "");
        log.debug("@DRUPALRULE: RequestUri = "+requestURI);
        //.....@UPDATED@TAPOMAY
        
        if(requestURI.equals("/favicon.ico"))
            return null;
        String realPath = sc.getRealPath(requestURI);
        log.debug("@DRUPALRULE: File check real path = "+realPath);
        if(realPath == null){
        	log.debug("@DRUPALRULE: Real path NULL for requestURI = "+requestURI);
        	return null;
        }
        File f = new File(realPath);
        
        if(f.isFile() || f.isDirectory() || f.isHidden()){
        	log.debug("@DRUPALRULE: File exists for requestURI = "+requestURI);
        	return null;
        }
        else{
        	log.debug("@DRUPALRULE: DrupalMatch for requestURI = "+requestURI);
            return new DrupalMatch();
        }
    }

    private ServletContext sc;
}
